Histatin-3
Definition:
Histatins are salivary proteins that are considered to be major precursors of the protective proteinaceous structure on tooth surfaces (enamel pellicle). In addition, histatins exhibit antibacterial and antifungal activities. His3-(20-43)-peptide (histatin-5) is especially effective against C.albicans and C.neoformans, and inhibits Lys-gingipain and Arg-gingipain (rgpB) from P.gingivalis. In addition, His3-(20-43)-peptide is a potent inhibitor of metalloproteinases MMP2 and MMP9.
References:
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[1]. H Tsai, et al. Candidacidal activity of recombinant human salivary histatin-5 and variants. Infect Immun. 1996 Dec;64(12):5000-7. [Content Brief]
[2]. H Gusman, et al. Salivary histatin 5 is an inhibitor of both host and bacterial enzymes implicated in periodontal disease. Infect Immun. 2001 Mar;69(3):1402-8. [Content Brief]
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